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SAE-AISI M3 Class 1 Steel vs. EN 1.4405 Stainless Steel

Both SAE-AISI M3 class 1 steel and EN 1.4405 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M3 class 1 steel and the bottom bar is EN 1.4405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
77
Tensile Strength: Ultimate (UTS), MPa 770 to 2150
860

Thermal Properties

Latent Heat of Fusion, J/g 260
280
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1570
1400
Specific Heat Capacity, J/kg-K 440
480
Thermal Conductivity, W/m-K 26
17
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 25
13
Density, g/cm3 8.3
7.8
Embodied Carbon, kg CO2/kg material 10
2.8
Embodied Energy, MJ/kg 150
39
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 33
20
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 26 to 72
31
Strength to Weight: Bending, points 22 to 44
26
Thermal Diffusivity, mm2/s 7.2
4.6
Thermal Shock Resistance, points 24 to 67
29

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.060
Chromium (Cr), % 3.8 to 4.5
15 to 17
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.9 to 82.9
73.6 to 80.3
Manganese (Mn), % 0.15 to 0.4
0 to 1.0
Molybdenum (Mo), % 4.8 to 6.5
0.7 to 1.5
Nickel (Ni), % 0 to 0.3
4.0 to 6.0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.025
Tungsten (W), % 5.0 to 6.8
0
Vanadium (V), % 2.3 to 2.8
0